CVE-2020-13300

CRITICAL 10.0CVE-2020-13300 · Published 14/09/2020 · updated 17/06/2026

In short

CVE-2020-13300 is a CRITICAL (CVSS 10.0) vulnerability affecting gitlab (gitlab).
Chance of exploitation in the next 30 days (EPSS): 1.3%, higher than 69.6% of all vulnerabilities.
Fix: update to 13.3.4 or later.

Package	Affected versions	Patched versions
gitlab gitlab	`≥ 13.3.0, < 13.3.4`	`13.3.4`

Description

GitLab CE/EE version 13.3 prior to 13.3.4 was vulnerable to an OAuth authorization scope change without user consent in the middle of the authorization flow.

References

gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13300.json · Vendor Advisory
gitlab.com/gitlab-org/gitlab/-/issues/219931 · Broken Link
hackerone.com/reports/884766 · Permissions Required

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Package

Affected versions

Patched versions

gitlab

≥ 13.3.0, < 13.3.4

13.3.4

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